World Resorts Norway Oslo Weather

Oslo Sea Temperature in September

Average sea water temperature in September:
+59.8°F
Minimum sea water temperature in September: 65.3°F
Maximum sea water temperature in September: 54.3°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 60.8°F. The highest and lowest sea temperatures during the month were 63.9°F and 58.5°F.

Monthly sea water temperature in Oslo, °F

Which Norway resorts have warmest sea in September?

Place name September 2026 September 2025
Oslo 60.8°F 60.7°F
Holmenkollen 60.8°F 60.7°F
Stavanger 58.2°F 60.0°F
Bergen 55.9°F 56.8°F
Ålesund 55.0°F 57.5°F
Trondheim 55.0°F 56.0°F
Tromse 49.5°F 50.4°F

Best time for vacation in Oslo

Sunniest months:
June 11 days
May 11 days
July 11 days
Warmest months:
July 68.6 °F
August 65.5 °F
June 64.9 °F
Warmest sea temp:
July 65.7 °F
August 65.0 °F
June 60.4 °F
Coldest months:
January 24.7 °F
February 28.5 °F
December 29.0 °F
Rainiest months:
August 6 days
May 5 days
June 5 days
Windiest months:
May 6.3 mph
June 6.1 mph
April 6.0 mph

Oslo on a weather map

Current weather
21:54
Oslo
+48°F
NW 9 mph
Feels like: +45°F
Precip.: 79%
Places in Norway:
Name
°F
Bergen
+46°F
Lillehammer
+43°F
Ålesund
+52°F
Oslo
+48°F
Stavanger
+52°F
Tromse
+39°F
Trondheim
+48°F
Flam
+30°F
Hemsedal
+34°F
Holmenkollen
+45°F
24 Hours Forecast
Oslo
Local time: 21:54
October 26, monday
0000
46°F
NW
7 mph
0300
46°F
NE
2 mph
0600
46°F
SW
2 mph
0900
45°F
E
3 mph
1200
52°F
E
3 mph
1500
52°F
NE
4 mph
1800
41°F
E
4 mph
2100
39°F
NE
2 mph
Units of measurement: °C / °F